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Results 21 - 40 of 228.


Physics - Chemistry - 27.10.2023
Interacting polarons
Interacting polarons
In physics, the complex processes in solids are often described in terms of quasiparticles. In ultracold quantum gases, these quasiparticles can be reproduced and studied. Now, for the first time, Innsbruck scientists led by Rudolf Grimm have been able to observe in experiments how Fermi polarons - a special type of quasiparticle - can interact with each other.

Chemistry - Life Sciences - 17.10.2023
Art with DNA - Digitally creating 16 million colors by chemistry
Art with DNA - Digitally creating 16 million colors by chemistry
The DNA double helix is composed of two DNA molecules whose sequences are complementary to each other. The stability of the duplex can be fine-tuned in the lab by controlling the amount and location of imperfect complementary sequences. Fluorescent markers bound to one of the matching DNA strands make the duplex visible, and fluorescence intensity increases with increasing duplex stability.

Chemistry - Materials Science - 27.09.2023
A Longer Life for Organic Solar Cells
A Longer Life for Organic Solar Cells
By Philipp Jarke Photovoltaic cells made of organic materials are light and flexible, which is why they are considered very promising. An international research network led by TU Graz is now aiming to increase the stability of the materials. Solar cells made of silicon have been around for 70 years. Organic solar cells, on the other hand, are quite new, but open up new possibilities for emission-free electricity production.

Physics - Chemistry - 23.08.2023
Scien­tists deve­lop fer­mio­nic quan­tum pro­ces­sor
Scien­tists deve­lop fer­mio­nic quan­tum pro­ces­sor
Researchers from Austria and USA have designed a new type of quantum computer that uses fermionic atoms to simulate complex physical systems. The processor uses programmable neutral atom arrays and is capable of simulating fermionic models in a hardware-efficient manner using fermionic gates. The team led by Peter Zoller demonstrated how the new quantum processor can efficiently simulate fermionic models from quantum chemistry and particle physics.

Chemistry - Environment - 14.08.2023
New materials for climate neutrality
New materials for climate neutrality
Cluster of Excellence Materials for Energy Conversion & Storage In the Cluster of Excellence Materials for Energy Conversion & Storage (MECS) researchers from the Vienna University of Technology, IST Austria, the University of Innsbruck and the University of Vienna develop new technologies for efficient energy conversion and storage, in order to pave the way for a climate-neutral society.

Life Sciences - Chemistry - 03.08.2023
On-off switch for enzymes
On-off switch for enzymes
Researchers at TU Graz have gained new insights into the functioning of a protein found in bacteria, whose enzymatic activity is activated by blue light. Light affects living organisms in many different ways: for example, plants orient their growth direction towards the sun, while circadian rhythms in humans are controlled by daylight.

Health - Chemistry - 21.07.2023
JKU Research: Solar-powered, wearable biosensor revolutionizes metabolic monitoring
JKU Research: Solar-powered, wearable biosensor revolutionizes metabolic monitoring
Many biomarkers can be read from human sweat - a new biosensor for monitoring human metabolism takes advantage of this . A new and improved technology has been developed by researchers at Johannes Kepler University Linz together with colleagues from the USA. The revolutionary sensor technology could be of great importance for both disease diagnostics and fitness monitoring.

Chemistry - 20.07.2023
RNA-drug interac­ti­ons
RNA-drug interac­ti­ons
How active compounds affect RNA and thus the expression of genes is of great interest for the development of potential therapeutics. Innsbruck chemists have now used a method they recently developed to study the binding of the aminoglycoside Neomycin B to a so-called mRNA riboswitch. In important cellular processes, ribonucleic acids (RNA) specifically recognize certain proteins or small organic molecules as binding partners.

Chemistry - Physics - 19.07.2023
New catalysts for solar hydrogen production
New catalysts for solar hydrogen production
Researchers at TU Wien are developing a layered photocatalyst that can be used to produce hydrogen very efficiently from water. Finding sustainable and clean fuels is crucial in today's global energy and climate crisis. One promising candidate that is increasingly gaining relevance is hydrogen. However, today's industrial hydrogen production still has a considerable CO2 footprint, especially considering processes like steam reforming or non-sustainable electrolysis.

Chemistry - Physics - 17.07.2023
Why our body runs like clockwork
Why our body runs like clockwork
The friction in our joints is extremely low - how is that physically possible at all? Measurements at TU Wien provide explanations and ideas for new treatment methods . Friction and wear as an eternal nuisance - this is as familiar in technology as it is in medicine. Whether it's a manual transmission or a knee joint, you always want moving parts to slide over each other with as little friction as possible, so that energy expenditure and wear are kept to a minimum.

Chemistry - Life Sciences - 30.06.2023
A new stra­t­egy ena­bles mole­cu­lar diver­sity
A new stra­t­egy ena­bles mole­cu­lar diver­sity
The research group led by chemist Thomas Magauer has accomplsihed a divergent strategy to synthesize nine complex natural compounds. The developed method requires significantly less time and results in a variety of compounds with different structures and biological properties. Chemical synthesis enables the construction of complex molecules and active drug substances.

Chemistry - 22.06.2023
Making the most of minuscule metal mandalas
Making the most of minuscule metal mandalas
A new speciation atlas helps researchers to get more accurate results and new discoveries. To unveil the previously elusive behavior and stability of complex metal compounds found in aqueous solutions called 'POMs', researchers at the University of Vienna have created a speciation atlas now published in Science Advances .

Physics - Chemistry - 14.06.2023
Shining potential of missing atoms
Shining potential of missing atoms
Single-atom vacancies in atomically thin insulators created in ultra-high vacuum Single photons have applications in quantum computation, information networks, and sensors, and these can be emitted by defects in the atomically thin insulator hexagonal boron nitride (hBN). Missing nitrogen atoms have been suggested to be the atomic structure responsible for this activity, but it is difficult to controllably remove them.

Chemistry - Physics - 05.06.2023
More complex than expected: Catalysis under the microscope
More complex than expected: Catalysis under the microscope
At TU Wien (Vienna, scientists use microscopy techniques to observe chemical reactions on catalysts more precisely than before yielding a wealth of detail. This made clear why some effects cannot be predicted. Catalysts composed from tiny metal particles play an important role in many areas of technology - from fuel cells to production of synthetic fuels for energy storage.

Life Sciences - Chemistry - 22.05.2023
New insights into the complex neurochemistry of ants
New insights into the complex neurochemistry of ants
Ants- brains are amazingly sophisticated organs that enable them to coordinate complex behaviour patterns such as the organisation of colonies. Now, a group of researchers led by Christian Gruber of MedUni Vienna's Institute of Pharmacology have developed a method that allows them to study ants- brain chemistry and gain insights into the insects- neurobiological processes.

Physics - Chemistry - 05.05.2023
Scale separation: breaking down unsolvable problems into solvable ones
Scale separation: breaking down unsolvable problems into solvable ones
Exact solutions are often impossible in materials physics. In an international research cooperation involving TU Wien and Saitama University in Japan a technique has now been developed to make unsolvable quantum calculations solvable on certain scales. In physics, one often has to deal with different scales that can be described separately from one another: For the earth's orbit around the sun, it makes absolutely no difference whether an elephant in the zoo walks to the left or to the right.

Life Sciences - Chemistry - 25.04.2023
TU Graz Researchers Produce Pseudouridine by means of Biocatalytic Synthesis
TU Graz Researchers Produce Pseudouridine by means of Biocatalytic Synthesis
By Falko Schoklitsch The new and patented method for the production of the important mRNA vaccine component pseudouridine is more efficient, sustainable and cost-effective than the previously used chemical synthesis. Researchers from the Institute of Biotechnology and Biochemical Engineering at TU Graz and the Austrian Centre of Industrial Biotechnology (acib) have developed a novel method for the production of central components of mRNA vaccines and applied for a patent.

Chemistry - Environment - 12.04.2023
The glyphosate filter
The glyphosate filter
Clean drinking water is essential. Therefore, an international research team led by Dominik Eder has now shown how groundwater can be efficiently freed from pollutants such as glyphosate. Contaminated drinking water poses a major threat to our health. However, various pollutants such as pesticides, herbicides, hormones, medicines and other chemical compounds cannot be completely removed from groundwater with the methods currently available.

Chemistry - Environment - 11.04.2023
From greenhouse gas to value-added product
From greenhouse gas to value-added product
If one converts CO2 into synthesis gas, a valuable starting material for the chemical industry can be obtained. Researchers at TU Wien show how this works even at room temperature and atmospheric pressure. Thinking of CO2, terms like climate-damaging or waste product probably quickly come to mind. While CO2 has been that for a long time - a pure waste product - more and more processes are being developed with which the greenhouse gas can be converted into valuable raw materials.

Physics - Chemistry - 06.04.2023
Meta-optics shows physical processes in the attosecond range
Meta-optics shows physical processes in the attosecond range
By Falko Schoklitsch A new type of meta-optics from Harvard has proven its functionality in experiments at Graz University of Technology. With it, it is possible to observe the smallest structures such as nanoparticles or transistors. Developed at Harvard, and successfully tested at Graz University of Technology (TU Graz), a revolutionary new meta-optics for microscopes with extremely high spatial and temporal resolution has proven its functional ability in laboratory tests at the Institute of Experimental Physics at TU Graz.